Propellus Inc., through its subsidiary, Sunvalley Solar Tech, Inc., operates as a solar power technology and system integration company in California. It offers turnkey solar system solutions, which include designing, building, operating, monitoring, and maintaining solar power systems for owners, builders, and architecture firms. The company focuses on solar systems and LED design and installation, solar technology and LED research and development, and solar equipment and LED manufacturing and distribution areas. It serves small private residences and large commercial solar power users. The company was formerly known as Sunvalley Solar, Inc. and changed its name to Propellus Inc. in December 2020. Propellus Inc. was founded in 2007 and is headquartered in Walnut, California.